Home / 12,198.81-18,288.48-4,801.89

Finding the Fourth Proportional to 12,198.81, 18,288.48 and 4,801.89

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Solution

The fourth proportional to 12,198.81, 18,288.48 and 4,801.89 is: 7,199.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.81 : 18,288.48 = 4,801.89 : x
  2. Step 2: Convert to fraction form
    12,198.81/18,288.48 = 4,801.89/x
  3. Step 3: Cross multiply
    12,198.81x = 18,288.48 × 4,801.89
  4. Step 4: Simplify right side
    12,198.81x = 87,819,269.23
  5. Step 5: Solve for x
    x = 87,819,269.23/12,198.81
  6. Step 6: Final answer
    x = 7,199.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.